Get rid of modules/webdatabase/chromium

Source/modules/modules.gypi

 {
   'variables': {
     # Experimental hooks for embedder to provide extra IDL and source files.
     #
     # Note: this is not a supported API. If you rely on this, you will be broken
     # from time to time as the code generator changes in backward incompatible
     # ways.
     'extra_blink_module_idl_files': [],
     'extra_blink_module_files': [],
 
@@ skipping 577 matching lines @@
       'webdatabase/DatabaseBackendSync.h',
       'webdatabase/DatabaseBase.cpp',
       'webdatabase/DatabaseBase.h',
       'webdatabase/DatabaseBasicTypes.h',
       'webdatabase/DatabaseCallback.h',
       'webdatabase/DatabaseContext.cpp',
       'webdatabase/DatabaseContext.h',
       'webdatabase/DatabaseError.h',
       'webdatabase/DatabaseManager.cpp',
       'webdatabase/DatabaseManager.h',
+      'webdatabase/DatabaseObserver.h',
       'webdatabase/DatabaseServer.cpp',
       'webdatabase/DatabaseServer.h',
       'webdatabase/DatabaseSync.cpp',
       'webdatabase/DatabaseSync.h',
       'webdatabase/DatabaseTask.cpp',
       'webdatabase/DatabaseTask.h',
       'webdatabase/DatabaseThread.cpp',
       'webdatabase/DatabaseThread.h',
+      'webdatabase/DatabaseTracker.cpp',
       'webdatabase/DatabaseTracker.h',
       'webdatabase/DOMWindowWebDatabase.cpp',
       'webdatabase/DOMWindowWebDatabase.h',
+      'webdatabase/QuotaTracker.cpp',
+      'webdatabase/QuotaTracker.h',
       'webdatabase/SQLCallbackWrapper.h',
       'webdatabase/SQLException.cpp',
       'webdatabase/SQLException.h',
       'webdatabase/SQLResultSet.cpp',
       'webdatabase/SQLResultSetRowList.cpp',
       'webdatabase/SQLStatement.cpp',
       'webdatabase/SQLStatement.h',
       'webdatabase/SQLStatementBackend.cpp',
       'webdatabase/SQLStatementBackend.h',
       'webdatabase/SQLStatementSync.cpp',
       'webdatabase/SQLStatementSync.h',
       'webdatabase/SQLTransaction.cpp',
       'webdatabase/SQLTransaction.h',
       'webdatabase/SQLTransactionBackend.cpp',
       'webdatabase/SQLTransactionBackend.h',
       'webdatabase/SQLTransactionBackendSync.cpp',
       'webdatabase/SQLTransactionBackendSync.h',
+      'webdatabase/SQLTransactionClient.cpp',
       'webdatabase/SQLTransactionClient.h',
       'webdatabase/SQLTransactionCoordinator.cpp',
       'webdatabase/SQLTransactionCoordinator.h',
       'webdatabase/SQLTransactionState.h',
       'webdatabase/SQLTransactionStateMachine.cpp',
       'webdatabase/SQLTransactionStateMachine.h',
       'webdatabase/SQLTransactionSync.cpp',
       'webdatabase/SQLTransactionSync.h',
       'webdatabase/SQLTransactionSyncCallback.h',
       'webdatabase/WorkerContextWebDatabase.cpp',
       'webdatabase/WorkerContextWebDatabase.h',
-      'webdatabase/chromium/DatabaseObserver.h',
-      'webdatabase/chromium/DatabaseTrackerChromium.cpp',
-      'webdatabase/chromium/QuotaTracker.cpp',
-      'webdatabase/chromium/QuotaTracker.h',
-      'webdatabase/chromium/SQLTransactionClientChromium.cpp',
       'webmidi/MIDIAccess.cpp',
       'webmidi/MIDIAccess.h',
       'webmidi/MIDIAccessPromise.cpp',
       'webmidi/MIDIAccessPromise.h',
       'webmidi/MIDIConnectionEvent.h',
       'webmidi/MIDIErrorCallback.h',
       'webmidi/MIDIInput.cpp',
       'webmidi/MIDIInput.h',
       'webmidi/MIDIMessageEvent.h',
       'webmidi/MIDIOptions.h',
@@ skipping 36 matching lines @@
       'websockets/WorkerThreadableWebSocketChannel.cpp',
       'websockets/WorkerThreadableWebSocketChannel.h',
     ],
     'modules_unittest_files': [
       'websockets/WebSocketDeflaterTest.cpp',
       'websockets/WebSocketExtensionDispatcherTest.cpp',
       'websockets/WebSocketPerMessageDeflateTest.cpp',
     ],
   },
 }